Patients with eye pain, headache and vomiting want to consider the following diseases: 1. Patients with headache, if they have intensive attacks over a period of time, accompanied by one side of the eye and around the orbit showing distension or pressure, while the patient will have bulbar conjunctival congestion, tearing and sweating, etc., should consider cluster headache; 2. Patients with eye pain, headache and vomiting want to consider glaucoma caused by glaucoma. Because the eye pressure increases in glaucoma, it will cause patients to have symptoms of eye pain and headache, and it also compresses the trigeminal nerve, which will cause patients to have symptoms of nausea and vomiting; 3. Patients with eye pain, head pain and vomiting, if they present throbbing-like or throbbing pain, they should be considered to have migraine attacks. Patients with headache and eye pain need to consider the following diseases. 4. Orbital apical syndrome: inflammation, tumor and hemorrhage, orbital trauma can cause the disease, clinically patients can present with headache and eye pain, in addition to increased orbital pressure and protrusion of the eyeball.